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Table 4 Bio-concentration factor of OCPs in water-fish (S. clarias)-parasite (W. acuminata) OCP congeners

From: Comparative partition coefficients of BTEX and OCPs between host Synodontis clarias and parasite Wenyonia acuminata

Classes (ppm) Congeners Water (ppm)
Mean ± SD
Intestine (ppm)
Mean ± SD
Parasite (ppm)
Mean ± SD
BAFi/w BAFp/i
Lindane α-BHC 0.000 ± 0.00 0.000 ± 0.00 0.000 ± 0.00 0.000 0.000
β-BHC 0.000 ± 0.00 0.000 ± 0.00 0.000 ± 0.00 0.000 0.000
γ-BHC 0.000 ± 0.00 0.000 ± 0.00 0.000 ± 0.00 0.000 0.000
d-BHC 0.000 ± 0.00 0.000 ± 0.00 0.000 ± 0.00 0.000 0.000
DDT 4,4-DDE 0.000 ± 0.00 0.000 ± 0.00 0.000 ± 0.00 0.000 0.000
4,4-DDT 5.761 ± 0.38 0.411 ± 0.02 0.793* ± 0.01 0.071 1.929
Cyclodiene Endosulfan 1 0.041* ± 0.00 0.000 ± 0.00 0.041* ± 0.00 0.000 1.000
Aldrin 0.059** ± 0.00 0.001 ± 0.00 0.008* ± 0.00 0.017 8.000
Dieldrin 0.000 ± 0.00 0.000 ± 0.00 0.000 ± 0.00 0.000 0.000
Endrin 0.000 ± 0.00 0.000 ± 0.00 0.000 ± 0.00 0.000 0.000
Heptachlor 0.030 ± 0.00 0.025 ± 0.00 0.026 ± 0.00 0.833 1.040
Heptachlor–Epoxide 0.000 ± 0.00 0.000 ± 0.00 0.000 ± 0.00 0.000 0.000
Total OCP 5.89 ± 0.38 0.437 ± 0.02 0.868 ± 0.01
  1. Asterisked (*) numbers imply significantly higher (p < 0.05). Numbers with same superscripts are no significantly different (p > 0.05). Italicized bioaccumulation factors imply significant figures (= or > 1). BAF I/W bioaccumulation factor of intestine relative to water, BAF P/I bioaccumulation factor of parasite relative to intestine